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WorksheetsKeystone Sample 2022-23 Module 2
Total questions: 12
Worksheet time: 33mins
The first six numbers in a pattern are listed below .
-19 .2 ˉ18 .4 ˉ17 .6 ˉ16 .8 ˉ16 ˉ15 .2
The pattern continues.
Which expression could be used to determine the 100th number in the pattern? Hint: Remember the first number is not the y-intercept. Do like tile patterns.
(54% correct answer)
-39.2(100) + 20
-0 .8(100) – 18 .4
0 .8(100) – 20
20(100) – 135 .2
The table below lists all the ordered pairs representing a relation . What is the domain of the relation?
(60% correct answer)
(0, 4}
{1, 2, 3, 5}
{all real numbers from 0 to 4}
{all real numbers from 1 to 5}
For a local race, the prize for first place is $250 plus an additional $5 for every person who registers for the race . The equation shown below represents the prize (y), in dollars, for first place based on the number of people (x) who register for the race.
y = 5x + 250
Which statement about the prize for first place is true?
(59% correct answer)
The prize for first place will always be a multiple of 50
The prize for first place will be $325 if 75 people register for the race
The prize for first place when there are 50 people registered for the race is twice as much as when there are 25 people registered .
The prize for first place when there are 100 people registered for the race is twice as much as when there are 25 people registered
The equation 3x + y = 8 describes a function of x . Which graph represents the function?
(66% correct answer)
Paul paints houses . He charges his customers a fixed amount to cover the expenses of using a paint sprayer and buying brushes . He also charges an amount based on the number of gallons of paint (x) he will need . The equation shown below represents the total amount (y), in dollars, Paul charges his customers for the materials he will need for a job
y = 14.5x + 80
What is represented by the number 14 .5 in Paul’s equation?
(63% correct answer)
the number of gallons of paint Paul will need
the charge for each gallon of paint Paul will need
the number of hours it will take to complete the paint job
the fixed amount charged for using a paint sprayer and buying brushes
What is the equation of the line that passes through the points (ˉ2, 4) and (6, 2)?
(61% correct answer)
y = 0 .25x + 4 .5
y = 0 .25x + 0 .5
y = ˉ0 .25x + 14
y = ˉ0 .25x + 3 .5
A line is graphed on the coordinate plane is shown.
Which statement correctly describes the line?
(68% correct answer)
The line has a slope of –2 and a y-intercept of –4
The line has a slope of –2 and a y-intercept of –2
The line has a slope of –1/2 and a y-intercept of –4
The line has a slope of –1/2 and a y-intercept of –2
Jessie lifts dumbbells as part of her exercise routine . The scatter plot below shows the relationship between the number of pounds (x) a dumbbell weighs and the number of repetitions (y) of a specific exercise that Jessie can perform.
Based on the scatter plot, which equation represents a line of best fit that could be used to model the relationship between the weights of the dumbbells and the numbers of repetitions that Jessie can perform.
(39% correct)
y = -0.8x + 30
y = -1.5x + 50
y = -2.8x + 73
y = -3.5x + 52
The list below represents the number of novels written by each of Amir’s 10 favorite authors .
1 3 3 4 5 7 8 10 12 23
What is the interquartile range of the number of novels written by each of Amir’s 10 favorite authors?
(47% correct answer)
3
6
7
22
Dion has two bunches of similar bananas . One bunch has 8 bananas, and the other bunch has 9 bananas . The list below shows the weight, in grams, of each of the bananas in the bunch of 8 .
138 118 121 164 140 115 129 123
Which measurement is most likely closest to the total weight of the bunch of 9 bananas?
(64% correct answer)
932 grams
1,048 grams
1,179 grams
1,368 grams
Vaughn surveyed 9 classmates . He asked each classmate for the number of days in the previous week that he or she had eaten fruit and the number of days that he or she had exercised . The scatter plot shown shows the results of his survey.
What is the median number of days that the 9 classmates exercised last week?
(75% correct answer)
2
3
4
5
A bookstore manager will randomly select 1 of 5 newly arrived fiction books and 1 of 4 newly arrived nonfiction books for a window display .
What is the probability that the manager will select the shortest of the newly arrived fiction books and the longest of the newly arrived nonfiction books?
(37% correct answer)
5%
10%
20%
45%
